| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -verify %s |
| 2 | // REQUIRES: LP64 |
| 3 | |
| 4 | void clang_analyzer_eval(bool); |
| 5 | |
| 6 | int f1(char *dst) { |
| 7 | char *p = dst + 4; |
| 8 | char *q = dst + 3; |
| 9 | return !(q >= p); |
| 10 | } |
| 11 | |
| 12 | long f2(char *c) { |
| 13 | return long(c) & 1; |
| 14 | } |
| 15 | |
| 16 | bool f3() { |
| 17 | return !false; |
| 18 | } |
| 19 | |
| 20 | void *f4(int* w) { |
| 21 | return reinterpret_cast<void*&>(w); |
| 22 | } |
| 23 | |
| 24 | namespace { |
| 25 | |
| 26 | struct A { }; |
| 27 | struct B { |
| 28 | operator A() { return A(); } |
| 29 | }; |
| 30 | |
| 31 | A f(char *dst) { |
| 32 | B b; |
| 33 | return b; |
| 34 | } |
| 35 | |
| 36 | } |
| 37 | |
| 38 | namespace { |
| 39 | |
| 40 | struct S { |
| 41 | void *p; |
| 42 | }; |
| 43 | |
| 44 | void *f(S* w) { |
| 45 | return &reinterpret_cast<void*&>(*w); |
| 46 | } |
| 47 | |
| 48 | } |
| 49 | |
| 50 | namespace { |
| 51 | |
| 52 | struct C { |
| 53 | void *p; |
| 54 | static void f(); |
| 55 | }; |
| 56 | |
| 57 | void C::f() { } |
| 58 | |
| 59 | } |
| 60 | |
| 61 | |
| 62 | void vla(int n) { |
| 63 | int nums[n]; |
| 64 | nums[0] = 1; |
| 65 | clang_analyzer_eval(nums[0] == 1); // expected-warning{{TRUE}} |
| 66 | |
| 67 | // This used to fail with MallocChecker on, and /only/ in C++ mode. |
| 68 | // This struct is POD, though, so it should be fine to put it in a VLA. |
| 69 | struct { int x; } structs[n]; |
| 70 | structs[0].x = 1; |
| 71 | clang_analyzer_eval(structs[0].x == 1); // expected-warning{{TRUE}} |
| 72 | } |
| 73 | |
| 74 | void useIntArray(int []); |
| 75 | void testIntArrayLiteral() { |
| 76 | useIntArray((int []){ 1, 2, 3 }); |
| 77 | } |
| 78 | |
| 79 | |